These universal aluminium mounting hubs from Pololu are designed to securely couple custom wheels, mechanisms, and other components to 6 mm diameter motor shafts. Each hub features six threaded #4-40 mounting holes for attaching wheels or custom parts, and a #4-40 hex set screw locks the hub firmly to the shaft.

Key Features

• 6 mm Shaft Compatibility – Fits standard 6 mm round motor shafts
• 6× #4-40 Threaded Mounting Holes – Attach wheels, brackets, or custom mechanisms
• Set Screw Locking – #4-40 hex set screws for secure shaft coupling
• Aluminium Construction – Lightweight and durable
• Hex Wrench Included – 0.05" wrench for the set screws

Ideal For

• Mounting custom wheels to motors with 6 mm shafts
• Coupling mechanisms to motor output shafts
• Robotics and motorised platform builds

Package Contents

• 2× Universal Aluminium Mounting Hubs (6 mm bore)
• 4× #4-40 Set Screws
• 1× 0.05" Hex Wrench